Erlotinib vs Tofacitinib

Erlotinib vs Tofacitinib: Overview

This comparison examines the pharmacological differences between Erlotinib and Tofacitinib.

Mechanism of Action

Erlotinib: Reversible inhibitor of EGFR (HER1) tyrosine kinase, blocking autophosphorylation.

Tofacitinib: Pan-JAK inhibitor with preference for JAK1 and JAK3 blocking pro-inflammatory cytokine signaling.

Pharmacokinetics

Half-life: Erlotinib — 36 hours; Tofacitinib — 3.2 hours.

Chemical Properties

Molecular Formula: Erlotinib — C22H23N3O4; Tofacitinib — C16H20N6O.

Molecular Weight: Erlotinib — 393.4380 g/mol; Tofacitinib — 312.3700 g/mol.

Type: Erlotinib — Small molecule; Tofacitinib — Small molecule.